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Other Financial Information (Components Of Receivables) (Details) - USD ($) $ in Thousands	Oct. 02, 2015	Sep. 26, 2014
Other Financial Information [Abstract]
Amounts billed, net	$ 1,213,892	$ 1,425,341
Unbilled receivables and other	1,252,509	1,368,482
Retentions receivable	82,342	73,732
Total receivables, net	2,548,743	2,867,555
Other information about receivables:
Amounts due from the United States federal government included above, net of advanced billings	327,157	324,928
Claims receivable	$ 32,511	$ 78,634

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Amounts Due From Us Government Included In Receivable

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Amounts due for billed services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the Company and, at a minimum, one other party. An example would be amounts billed to customers under contracts or programs but not paid as of the balance sheet date.

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Unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet.

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